UMA1020AM datasheet(4/20 Pages) PHILIPS

Part #	UMA1020AM

Description	Low-voltage dual frequency synthesizer for radio telephones

Download	20 Pages

Scroll/Zoom	100%

Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

Logo

4 / 20 page

1995 Jul 06

4

Philips Semiconductors

Product speciﬁcation

Low-voltage dual frequency

synthesizer for radio telephones

UMA1020AM

PINNING

SYMBOL

DESCRIPTION

FAST

1

control input to speed-up main

synthesizer

CPPF

2

principal synthesizer speed-up

charge-pump output

CPP

3

principal synthesizer normal

charge-pump output

VDD1

4

digital power supply 1

VDD2

5

digital power supply 2

PRI

6

1.7 GHz principal synthesizer

frequency input

DGND

7

digital ground

fXTAL

8

common crystal frequency input from

TCXO

POFF

9

principal synthesizer power-down

input

n.c.

10

not connected

CLK

11

programming bus clock input

DATA

12

programming bus data input

E

13

programming bus enable input

(active LOW)

ISET

14

regulator pin to set the charge-pump

currents

AUX

15

auxiliary synthesizer frequency input

AGND

16

analog ground

CPA

17

auxiliary synthesizer charge-pump

output

VCC

18

supply for charge-pump

AOFF

19

auxiliary synthesizer power-down

input

LOCK

20

in-lock detect output (main PLL); test

mode output

Fig.2 Pin configuration.

FUNCTIONAL DESCRIPTION

Principal synthesizer

Programmable reference and main dividers drive the

principal PLL phase detector. Two charge pumps produce

phase error current pulses for integration in an external

loop filter. A hardwired power-down input POFF (pin 9)

ensures that the dividers and phase comparator circuits

can be disabled.

The PRI input (pin 6) drives a preamplifier to provide the

clock to the first divider stage. The preamplifier has a high

input impedance, dominated by pin and pad capacitance.

The circuit operates with signal levels from 100 mV to

500 mV (RMS), and at frequencies up to 1.7 GHz.

The high frequency divider circuits use bipolar transistors,

slower bits are CMOS. Divider ratios (512 to 131071)

allow up to 2 MHz phase comparison frequency.

Similar Part No. - UMA1020AM

Manufacturer	Part #	Datasheet	Description
NXP Semiconductors	UMA1020	163Kb / 20P	Low-voltage dual frequency synthesizer for radio telephones 1995 Jun 15
NXP Semiconductors	UMA1020M	163Kb / 20P	Low-voltage dual frequency synthesizer for radio telephones 1995 Jun 15

More results

Similar Description - UMA1020AM

Manufacturer	Part #	Datasheet	Description
NXP Semiconductors	UMA1018M	166Kb / 20P	Low-voltage dual frequency synthesizer for radio telephones 1995 Jun 27
	OM5156M	160Kb / 20P	Low-voltage dual frequency synthesizer for radio telephones 1995 Nov 24
	UMA1020M	163Kb / 20P	Low-voltage dual frequency synthesizer for radio telephones 1995 Jun 15
	UMA1019AM	134Kb / 16P	Low-voltage frequency synthesizer for radio telephones 1995 Jul 07
	UMA1021M	107Kb / 16P	Low-voltage frequency synthesizer for radio telephones 1999 Jun 17
	UMA1017M	171Kb / 16P	Low-voltage frequency synthesizer for radio telephones 1995 Jul 10
	UMA1021AM	104Kb / 16P	Low-voltage frequency synthesizer for radio telephones 1998 Nov 19
	UMA1019M	134Kb / 16P	Low-voltage frequency synthesizer for radio telephones 1995 Jul 07
	UMA1022M	126Kb / 20P	Low cost dual frequency synthesizer for radio telephones 1998 Dec 09
	UMA1015AM	159Kb / 24P	Low-power dual frequency synthesizer for radio communications 1997 Sep 03

More results

UMA1020AM Datasheet(PDF) 4 Page - NXP Semiconductors

UMA1020AM Datasheet(HTML) 4 Page - NXP Semiconductors

Similar Part No. - UMA1020AM

Similar Description - UMA1020AM

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Datasheet Download

Link URL